html,
body,
#app {
  font-family: 'Microsoft YaHei', 'Helvetica Neue', Tahoma, Helvetica, Arial, '\5FAE\8F6F\96C5\9ED1', PingFangSC-Regular, "PingFang SC";
  font-size: 100%;
  font-weight: normal;
  -webkit-overflow-scrolling: touch;
}

html,
body,
#app,
div,
p,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
form,
fieldset,
legend,
input,
button,
textarea,
table,
th,
td,
dl,
dd,
blockquote,
menu,
pre,
section {
  padding: 0;
  margin: 0;
}

input,
button,
textarea,
select,
address,
caption,
cite,
code,
i,
th,
abbr {
  font-size: 100%;
  font-style: normal;
  border: 0 none;
  outline: none;
}

input,
textarea,
select,
button {
  font-size: 100%;
  appearance: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

ul,
ol,
menu {
  list-style: none;
}

fieldset,
img {
  border: none;
}

img,
select,
input,
textarea,
button {
  vertical-align: middle;
}

a {
  color: inherit;
  text-decoration: none;
  user-select: none;
  user-select: text;
  -webkit-tap-highlight-color: transparent;
}

a:hover,
a:focus {
  text-decoration: none;
  outline: none;
}

input::input-placeholder,
textarea::input-placeholder {
  font-size: 100%;
  color: #aaa;
}

h3,
h4,
h5,
h6 {
  font-weight: normal;
}

div,
input,
p,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
fieldset,
legend,
button {
  box-sizing: border-box;
}

div{
  font-size: 16px;
}

.flex-row {
  display: flex;
  flex-direction: row;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

.justify-start {
  display: flex;
  justify-content: flex-start;
}

.justify-center {
  display: flex;
  justify-content: center;
}

.justify-end {
  display: flex;
  justify-content: flex-end;
}

.justify-evenly {
  display: flex;
  justify-content: space-evenly;
}

.justify-around {
  display: flex;
  justify-content: space-around;
}

.justify-between {
  display: flex;
  justify-content: space-between;
}

.items-start {
  display: flex;
  align-items: flex-start;
}

.items-center {
  display: flex;
  align-items: center;
}

.items-end {
  display: flex;
  align-items: flex-end;
}

